Perhaps you should try some spelling variations:
"dung thang ca snippets" » "hung thang ca snippets", "cung thang ca snippets", "dung thuong ca snippets", "dung thang cua snippets", "dung hang ca snippets", "dung tang ca snippets"
"hang java java snippets" » "hang va java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung thang ca snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung thang ca snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung thang ca snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung thang ca snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.